Search Results for author: Yenson Lau

Found 5 papers, 2 papers with code

Find Your Friends: Personalized Federated Learning with the Right Collaborators

no code implementations12 Oct 2022 Yi Sui, Junfeng Wen, Yenson Lau, Brendan Leigh Ross, Jesse C. Cresswell

In the traditional federated learning setting, a central server coordinates a network of clients to train one global model.

Personalized Federated Learning

Short and Sparse Deconvolution --- A Geometric Approach

1 code implementation ICLR 2020 Yenson Lau, Qing Qu, Han-Wen Kuo, Pengcheng Zhou, Yuqian Zhang, John Wright

Short-and-sparse deconvolution (SaSD) is the problem of extracting localized, recurring motifs in signals with spatial or temporal structure.

Deblurring Image Deblurring +1

Short-and-Sparse Deconvolution -- A Geometric Approach

1 code implementation28 Aug 2019 Yenson Lau, Qing Qu, Han-Wen Kuo, Pengcheng Zhou, Yuqian Zhang, John Wright

This paper is motivated by recent theoretical advances, which characterize the optimization landscape of a particular nonconvex formulation of SaSD.

Deblurring Image Deblurring +1

On the Global Geometry of Sphere-Constrained Sparse Blind Deconvolution

no code implementations CVPR 2017 Yuqian Zhang, Yenson Lau, Han-Wen Kuo, Sky Cheung, Abhay Pasupathy, John Wright

Blind deconvolution is the problem of recovering a convolutional kernel $\boldsymbol a_0$ and an activation signal $\boldsymbol x_0$ from their convolution $\boldsymbol y = \boldsymbol a_0 \circledast \boldsymbol x_0$.

Deblurring Dictionary Learning +1

Geometry and Symmetry in Short-and-Sparse Deconvolution

no code implementations2 Jan 2019 Han-Wen Kuo, Yenson Lau, Yuqian Zhang, John Wright

We study the $\textit{Short-and-Sparse (SaS) deconvolution}$ problem of recovering a short signal $\mathbf a_0$ and a sparse signal $\mathbf x_0$ from their convolution.

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